This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


CA Supplemental Hydraulic Pump Sizing
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
dfwallis View Drop Down
Orange Level
Orange Level


Joined: 09 Mar 2023
Location: DFW
Points: 622 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dfwallis Quote  Post ReplyReply Direct Link To This Post Topic: CA Supplemental Hydraulic Pump Sizing
    Posted: 9 hours 44 minutes ago at 3:12pm
What would be a proper target GPM size for a supplemental hydraulic pump for a CA (given limited horsepower)?  10GPM?  15GPM? ?  (10GPM ~ 11HP at 2000PSI per one online calculator that I don't really trust)
1952 CA13092
Back to Top
Sponsored Links


Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 20437 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 9 hours 24 minutes ago at 3:32pm
Depends on the diameter(s) of the cylinders you are going to use. Depends on the system pressures and how much you intend to lift. Depends on if the engine is going to run 2000 RPM most of the time you are activating the hydraulics or 1000 RPM. Depends on what YOU think the lifting speed should be. Whatever you'd do with a tractor that size and cylinders of 2 inch diameter max (1 1/2" might be more suited) 10 GPM will be lightning fast at full throttle.  A 400 series loader has a 10-12 GPM front pump and it will lift the loader boom from the ground to full height in 3 seconds !!! and that's filling TWO boom cylinders. Personally, I'd want 5 GPM and no more at full throttle.
Back to Top
dfwallis View Drop Down
Orange Level
Orange Level


Joined: 09 Mar 2023
Location: DFW
Points: 622 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dfwallis Quote  Post ReplyReply Direct Link To This Post Posted: 9 hours 17 minutes ago at 3:39pm
It will likely max out about 1200-1500 RPM.  I intend to select a low-ish RPM pump and gear it accordingly.  Probably no larger than 2-2.5 inch cylinders, ~2000PSI.  
1952 CA13092
Back to Top
Stan R View Drop Down
Orange Level Access
Orange Level Access


Joined: 03 Dec 2009
Location: MA
Points: 960 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Stan R Quote  Post ReplyReply Direct Link To This Post Posted: 7 hours 8 minutes ago at 5:48pm
I'd suggest just direct coupling to the engine (crank shaft or belt) or pto and not deal with any gearbox (extra cost, more hp loss, bulkier system...).

Flow is somewhat proportional to the rpm. Which way are you planning on powering the pump.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.062 seconds.


Help Support the
Unofficial Allis Forum